
.分栏 {
float: left;
  height: 100vh;
  overflow: auto;
}

.分栏.导航 {
width: 10%;
}
.分栏.链接 {
width: 25%;
}
.分栏.内容 {
width: 60%;
}
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    /*width: 10%;*/
    background-color: #f1f1f1;
    height: 100%;
}
li{ list-style-type: none;}
li a {

    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}
